From c50e8dd1eb37609e7d67dd624cc0e151afa02898 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=A5=BD=E5=A4=9A=E5=A4=A7=E7=B1=B3?= <lost1q84@gmail.com>
Date: Tue, 3 Aug 2021 11:01:56 +0800
Subject: [PATCH] Select: fix a bug that makes the browser jitter in zoom mode
 (#21197)

---
 packages/select/src/select.vue | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/select/src/select.vue b/packages/select/src/select.vue
index 4c5fb6cdd93..a9b63214d79 100644
--- a/packages/select/src/select.vue
+++ b/packages/select/src/select.vue
@@ -646,11 +646,12 @@
           let inputChildNodes = this.$refs.reference.$el.childNodes;
           let input = [].filter.call(inputChildNodes, item => item.tagName === 'INPUT')[0];
           const tags = this.$refs.tags;
+          const tagsHeight = Math.round(tags.getBoundingClientRect().height);
           const sizeInMap = this.initialInputHeight || 40;
           input.style.height = this.selected.length === 0
             ? sizeInMap + 'px'
             : Math.max(
-              tags ? (tags.clientHeight + (tags.clientHeight > sizeInMap ? 6 : 0)) : 0,
+              tags ? (tagsHeight + (tagsHeight > sizeInMap ? 6 : 0)) : 0,
               sizeInMap
             ) + 'px';
           if (this.visible && this.emptyText !== false) {